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25TH SESSION OF SEMINARS ON RESEARCH IN ENERGY ECONOMICS AT PARIS-SCIENCES-LETTRES

LES MODES DE RECYCLAGE D’UNE TAXE CLIMAT-ÉNERGIE : ENTRE EFFICACITE ET ÉQUITÉ

Wednesday 18 NOVEMBER 2015, from 16h30 to 18h30
Université Paris-Dauphine
Place du Maréchal de Lattre de Tassigny-75116 Paris Cedex
Salle D, 2ème étage, couloir Droit, face aux ascenseurs

This seminar was held in French.

Registration can be done on the website Eventbrite
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PROGRAMME AND PRESENTATIONS
The Seminar on Research in Energy Economics at Paris-Sciences-Lettres (PSL) is jointly organized by the CERNA (MINES PARIS TECH), the CGEMP (Université Paris-Dauphine), the Chaire European Electricity Markets (Université Paris-Dauphine), and i3 (l’Institut interdisciplinaire de l’innovation), members of PSL. It is animated by François LEVEQUE (MINES PARIS TECH), Dominique FINON (Chaire European Electricity Markets, CNRS-CIRED) and Patrice GEOFFRON (Director, CGEMP, Université Paris-Dauphine).

Frédéric GONAND, Professeur associé, Université Paris-Dauphine
Fostering Renewables and Recycling a Carbon Tax: Joint Aggregate and Intergenerational Redistributive Effects
Presentation
The paper assesses and compares the difference of effects on growth and intertemporal welfare of carbon tax and renewables promotion policies. It relies on a computable general equilibrium model with overlapping generations, an energy module and a public finance module. The main result is that an increasing share of renewables in the energy mix and a fully recycled carbon tax have opposite (though limited) impacts on activity and individuals’ intertemporal welfare in the long run. The recycling of a carbon tax fosters consumption and labour supply, and thus growth and welfare, whereas an increasing share of renewables does not. Results also suggest that a higher share of renewables and a recycled carbon tax trigger intergenerational redistributive effects, with the former being relatively detrimental for young generations and the latter being pro-youth. The policy implication is that a social planner seeking to modify the structure of the energy mix while achieving some neutrality as concerns the GDP and triggering some intergenerational equity, could usefully contemplate the joint implementation of higher quantitative targets for the future development of renewables and a carbon tax fully recycled through lower proportional taxes.
(Working Paper Chaire Climat n° 2014-08).

Emmanuel COMBET, Chercheur post-doctorant, Centre International de recherche sur l’environnement et le développement
La fiscalité carbone-énergie au risque des enjeux d’équité
Presentation
Dans cette présentation, on montre comment l’effet socialement régressif d’une fiscalité carbone est lié à l’usage qui est fait du produit de la taxe. On insiste d’abord sur l’écart entre leur impact immédiatement perçu et leur impact ultime. L’impact réel d’une fiscalité carbone énergie sur la pauvreté et les inégalités n’est pas mécaniquement déterminé par le poids initial du budget- énergies et les marges de manœuvre qu’ont les ménages pour le réduire, mais qu’il dépend aussi largement du choix d’usage des recettes de la taxe et des effets macro-économiques induits par l’ensemble. A partir d’un cadre de modélisation hybride en équilibre général avec un raffinement de la représentation des groupes de consommateurs par niveau de revenus, on évalue les performances de long terme de plusieurs dispositifs de recyclage des recettes sur la base de leurs effets macroéconomiques (croissance et emploi) et redistributifs. On compare cinq dispositifs de recyclage (remboursement de la dette publique, baisses des cotisations sociales, allocation universelle ou restreinte, crédit d’impôt généralisé) aux résultats différenciés pour laisser le choix d’arbitrer aux politiques.
(Article paru dans la Revue Française d’Économie vol.25, n°2, co-écrit avec F. Ghersi et JC Hourcade).

For additional information, please contact the organizers:
Dominique Finon: finon@centre-cired.fr
François Lévêque: francois.leveque@ensmp.fr
Et Patrice Geoffron: patrice.geoffron@dauphine.fr

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